Struct OptionChain

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pub struct OptionChain(/* private fields */);

Expand description

The latest option chain for one query, independent of egui. Clones share the subscription; dropping the last handle makes its sink inactive.

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impl OptionChain

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pub fn new( feed: &dyn Datafeed, query: OptionChainQuery, wake: impl Fn() + Send + Sync + 'static, ) -> Option<Self>

Subscribe through feed, outside egui closures, and wake the host on each snapshot or error. Returns None for an empty underlying symbol or reversed expiry range. Unsupported feeds immediately report FeedError::NotSupported through Self::error.

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pub fn rows(&self) -> Arc<[OptionQuote]> ⓘ

Latest complete accepted snapshot, in the feed’s order. Empty until one arrives. Missing figures remain None; no calculation or aggregation is applied.

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pub fn error(&self) -> Option<FeedError>

Last feed or validation error, cleared by the next accepted snapshot.

Trait Implementations§

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impl Clone for OptionChain

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fn clone(&self) -> OptionChain

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

Auto Trait Implementations§

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impl UnsafeUnpin for OptionChain

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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